22423230 has 160 divisors (see below), whose sum is σ = 66908160. Its totient is φ = 5365440.

The previous prime is 22423223. The next prime is 22423231. The reversal of 22423230 is 3232422.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22423231) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 477067 + ... + 477113.

It is an arithmetic number, because the mean of its divisors is an integer number (418176).

Almost surely, 2^22423230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22423230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33454080).

22423230 is an abundant number, since it is smaller than the sum of its proper divisors (44484930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22423230 is a wasteful number, since it uses less digits than its factorization.

22423230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 22423230 is about 4735.3173072140. The cubic root of 22423230 is about 281.9893613008.

Adding to 22423230 its reverse (3232422), we get a palindrome (25655652).

The spelling of 22423230 in words is "twenty-two million, four hundred twenty-three thousand, two hundred thirty".